连续流动分析测定饮水中挥发酚的方法探讨
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摘要
目的研究连续流动分析测定饮水中挥发酚的方法。方法通过绘制标准曲线、测定方法的检出限、准确度、精密度、有证标准物质、加标回收以及与国家标准方法(GB/T 5750.4-2006)进行比对。结果在0～50μg/L范围内线性关系良好,r=0.999 8;检出限0.072μg/L,检测限0.14μg/L;测定有证标准物质(GSBZ50003-88,批号:200345,46.9±3.6μg/L),结果在44.0μg/L～49.1μg/L之间,均值为47.6μg/L,再现性精密度RSD为3.1%(n=15);加标回收率在95%～103%之间;水样检测结果与国家标准方法比较,t=0.4290.05,差异无统计学意义。结论本法简便、快速、准确、样品用量少、检出限低,可满足日常监测大批量饮水样品中挥发酚的测定。
Objective To evaluate the method to determine volatile phenols in drinking water by using a Continuous Flow Analyzer(CFA). Methods A comparison to the method in national standard GB Method(GB/T 5750.4-2006)was made by plotting the standard curve, measuring the limit of detection, accuracy and precision, analyzing certified reference material(CRM) and carrying out spiked recovery test. Results The linearity was good in the range of 0-50 μg/L(r=0.999 8);LOD was 0.072 μg/L,LOQ was 0.14 μg/L;the analytical results of CRM(GSBZ50003-88 Batch:200345, 46.9 ± 3.6 μg/L) were between 44.0 and 49.1 μg/L, and the average was 47.6 μg/L;reproducibility RSD was 3.1%(n=15); spiked recoveries were beteween 95% and 103%. The difference from the national standard method was statistically insignificant(t=0.4290.05). Conclusion This method is simple, fast and accurate with a low sample demand and a low limit of detection. It can meet the need for daily monitoring of volatile phenols in drinking water.
Objective To evaluate the method to determine volatile phenols in drinking water by using a Continuous Flow Analyzer(CFA). Methods A comparison to the method in national standard GB Method(GB/T 5750.4-2006)was made by plotting the standard curve, measuring the limit of detection, accuracy and precision, analyzing certified reference material(CRM) and carrying out spiked recovery test. Results The linearity was good in the range of 0-50 μg/L(r=0.999 8);LOD was 0.072 μg/L,LOQ was 0.14 μg/L;the analytical results of CRM(GSBZ50003-88 Batch:200345, 46.9 ± 3.6 μg/L) were between 44.0 and 49.1 μg/L, and the average was 47.6 μg/L;reproducibility RSD was 3.1%(n=15); spiked recoveries were beteween 95% and 103%. The difference from the national standard method was statistically insignificant(t=0.429
引文
[1]GB 5749-2006生活饮用水卫生标准[S].2007.
[2]GB/T 5750.4-2006生活饮用水标准检验方法感官性状和物理指标[S].2007.
[3]靳莎.连续流动分析法同时测定饮用水中的挥发酚和阴离子合成洗涤剂[J].中国卫生检验杂志,2017,27(19):2769-2770,2773.
[4]GB/T 5750.2-2006生活饮用水标准检验方法水样的采集与保存[S].2007.
[5]GB/T 5750.3-2006生活饮用水标准检验方法水质分析质量控制[S].2007.
[6]吕宝阔.连续流动分析法在辽河挥发酚监测中的应用[J].地下水,2016,38(4):77-78.
[7]巴诺.利用连续流动分析法测定水质中挥发酚的方法[J].河南水利与南水北调,2016(12):26-27.
[8]王志瑞,赵佳佳,罗会鹏,等.用连续流动分析法测定地表水中挥发酚的可行性研究[J].农家参谋,2018(1):216-216.
[9]秦雨.连续流动分析法测定水质中挥发酚的方法研究[J].科技与企业,2015(13):245-245.
[10]刘威.连续流动分析仪测定炼厂净化水中挥发酚[J].工业水处理,2016,36(4):89-91.
[11]赵弋茹,刘江兰.全自动连续流动分析法测定水中挥发性酚的方法研究[J].建筑工程技术与设计,2016(21):3039-3039.
[12]韩冬青,史晓珑,云杰.SKALARSAN++连续流动分析仪测定水体中的挥发酚[J].内蒙古石油化工,2013,39(2):14-15.
[13]何晓燕.连续流动分析仪测定地表水中挥发酚的方法分析[J].资源节约与环保,2014(5):114-114.
[14]陈海宁,哈春光.SKALAR自动连续流动分析仪测定水中挥发酚[J].人民黄河,2012,34(7):79-81.
[15]黄泉萍.连续流动分析仪测定水环境中挥发酚的研究[J].黑龙江水利科技,2015,43(8):82-84.
[16]黄丽芬.SKALAR SAN++连续流动分析仪测定水中挥发酚[J].福建分析测试,2018,27(2):58-62.
[17]席彦凯,戚浩强,吴军新,等.连续流动分析仪对地表水中挥发酚的测定[J].科技创新导报,2015,12(27):114-116.
[18]GB 8538-2016饮用天然矿泉水检验方法[S].2017.
[2]GB/T 5750.4-2006生活饮用水标准检验方法感官性状和物理指标[S].2007.
[3]靳莎.连续流动分析法同时测定饮用水中的挥发酚和阴离子合成洗涤剂[J].中国卫生检验杂志,2017,27(19):2769-2770,2773.
[4]GB/T 5750.2-2006生活饮用水标准检验方法水样的采集与保存[S].2007.
[5]GB/T 5750.3-2006生活饮用水标准检验方法水质分析质量控制[S].2007.
[6]吕宝阔.连续流动分析法在辽河挥发酚监测中的应用[J].地下水,2016,38(4):77-78.
[7]巴诺.利用连续流动分析法测定水质中挥发酚的方法[J].河南水利与南水北调,2016(12):26-27.
[8]王志瑞,赵佳佳,罗会鹏,等.用连续流动分析法测定地表水中挥发酚的可行性研究[J].农家参谋,2018(1):216-216.
[9]秦雨.连续流动分析法测定水质中挥发酚的方法研究[J].科技与企业,2015(13):245-245.
[10]刘威.连续流动分析仪测定炼厂净化水中挥发酚[J].工业水处理,2016,36(4):89-91.
[11]赵弋茹,刘江兰.全自动连续流动分析法测定水中挥发性酚的方法研究[J].建筑工程技术与设计,2016(21):3039-3039.
[12]韩冬青,史晓珑,云杰.SKALARSAN++连续流动分析仪测定水体中的挥发酚[J].内蒙古石油化工,2013,39(2):14-15.
[13]何晓燕.连续流动分析仪测定地表水中挥发酚的方法分析[J].资源节约与环保,2014(5):114-114.
[14]陈海宁,哈春光.SKALAR自动连续流动分析仪测定水中挥发酚[J].人民黄河,2012,34(7):79-81.
[15]黄泉萍.连续流动分析仪测定水环境中挥发酚的研究[J].黑龙江水利科技,2015,43(8):82-84.
[16]黄丽芬.SKALAR SAN++连续流动分析仪测定水中挥发酚[J].福建分析测试,2018,27(2):58-62.
[17]席彦凯,戚浩强,吴军新,等.连续流动分析仪对地表水中挥发酚的测定[J].科技创新导报,2015,12(27):114-116.
[18]GB 8538-2016饮用天然矿泉水检验方法[S].2017.